Destroyer Bio #31 question

[Cosmicnova]

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I thought that Hardy-Weinberg equilibrium's assumption was...

No natural selection
No Mutation
No migration (which means population must be "isolated")
large population
random mating

So, I was pretty sure that a) no isolation isn't assumption.

But, Destroyer says it is.

I am confused...

 

[oclor]

Think of it this way. You have one population. There is no migration, meaning other populations can't come in and disturb your genes.

Isolation would mean that a certain group of your population gets isolated, not that your entire group is isolated from others. If a part of your group was isolated, they would evolve differently then the rest of the group. Thus, no isolation.

 

[JBarr29]

and thats called sympatric speciation...allopatric is when species evolve differently based on isolation due to land barriers- just a side note...never know when it will pop up

 

[Cosmicnova]

Think of it this way. You have one population. There is no migration, meaning other populations can't come in and disturb your genes.

Isolation would mean that a certain group of your population gets isolated, not that your entire group is isolated from others. If a part of your group was isolated, they would evolve differently then the rest of the group. Thus, no isolation.

Oh, now I got it. I thought that was whole population. But it wasn't.

Thanks!

 

[Svart Aske]

I would've been confused by that problem. Poor wording.

 

[kingcon9]

also isolating a subpopulation would de-randomize the mating​